Предмет: Геометрия, автор: katpir2002

Стороны треугольника относятся как 4:5:7. Найдите стороны подобного ему треугольника , если его периметр равен 96 см. СРОЧНО, РЕБЯТ! ПОМОГИТЕ, ПОЖАЛУЙСТА!

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Автор ответа: Alana754

пусть х-коэфицент пропорциональности тогда (допустим)АВ=4х ,ВС=5х,АС=6х.Составим Уравнение:4х+5х+7х=96
16х=96
х=6
найдем строны АВС(допустим)→
АВ=4*6=24
ВС=6*5=30
АС=6*7=42

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